KERI Systems KERI3000 Proximity RFID Reader User Manual NXT Reader Installation Guide

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Document ID	874942
Application ID	llLChzVEYUPujdB9HmuBaA==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	5.99kB (74923 bits)
Date Submitted	2007-12-03 00:00:00
Date Available	2007-12-03 00:00:00
Creation Date	2005-10-04 15:10:28
Producing Software	Acrobat Distiller 8.1.0 (Windows)
Document Lastmod	2007-11-19 10:02:15
Document Title	NXT_Reader_Installation_Guide.fm
Document Creator	FrameMaker 8.0
Document Author:	GGRIGSBY

NXT-1R/-3R/-5R Reader
Installation Guide
Section 1 – Wiring and Layout Diagrams
Section 2 – Specifications and Cable Requirements
Section 3 – Reference Documentation List
Section 4 – Keri Contact Information
1.0
Wiring and Layout Diagrams
1.1
NXT-1R/-3R/-5R Readers
NXT-1R/-3R/-5R Installation Drawing
LED
IO-Minus (White)
IO-Plus (Green)
Beeper
Total cable length
RS-485
no greater than 1,000 feet (300 m)
Ground (Black)
+12 VDC (Red)
Reader Body
Shield (Silver)
P/N: 01999-002 - Rev.B
•
•
•
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at his own expense.
Changes to this equipment not expressly approved by Keri Systems, Inc. may void FCC certification and the user’s authority to operate
this equipment.
Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
2.0
Specifications
2.1
NXT-Reader Dimensions
•
•
•
2.2
•
NXT-1R Euro Mount Prox Reader
- 3.25 inches tall by 3.25 inches wide by 0.5625 inches deep, not including wiring connectors
- 8.25 cm by 8.25 cm by 1.43 cm
NXT-3R Mullion Reader
- 3.75 inches tall by 1.625 inches wide by 0.50 inches deep
- 9.52 cm by 4.13 cm by 1.27 cm
NXT-5R Wall Switch Reader
- 4.50 inches tall by 3.00 inches wide by 0.625 inches deep, not including wiring connectors
- 11.43 cm by 7.62 cm by 1.59 cm
Power/Current Requirements
10 to 14 VDC @ 120 mA (maximum current draw at 12 VDC)
Page 1 of 2
P/N: 01997-003 Rev. A
NXT-1R/-3R/-5R Reader
Installation Guide
2.3
•
Operating Conditions
-40°F to 150°F (-40°C to 65°C) – 0% to 90% Relative Humidity, non-condensing
2.4
Cable Requirements
RS-485 bus runs can daisy-chain together an NXT-4x4 and NXT-Reader on one line. However, the total distance for this
run can be no greater than 1,000 feet from the NXT controller.
NOTE: On long cable runs, cable resistance causes a drop in voltage at the end of the cable run. Ensure the appropriate
power and current for your device is available at the device at the end of the cable run.
Table 1: Cable Requirements
Total Run
Length
# of
Conductors
Shielded
Stranded
Twisted
-Pair
AWGa
Belden
Equivalent
RS-485 bus from
NXT-2D/-4D to NXT4x4 (with or without
1R/-3R/-5R Readers)
1,000 feet
16
TBD
500 feet
18
TBD
250 feet
22
TBD
RS-485 bus from NXT2D/-4D to 1R/-3R/-5R
Readers only
1,000 feet
20
TBD
500 feet
22
TBD
250 feet
26
TBD
Connection
a. Heavier gauges then those listed are always acceptable.
3.0
Product Documentation
All Keri technical documentation can be found on the Keri CD in the Technical Documentation folder
or online at http://www.kerisys.com/pages/download/techdocs.asp.
4.0
Contact Keri Systems
Keri USA
Keri UK, Ireland, Europe
2305 Bering Drive
San Jose, CA 95131
Unit 17
Park Farm Industrial Estate
Ermine Street
Buntingford
Herts SG9 9AZ UK
Telephone: (800) 260-5265
(408) 435-8400
Telephone: + 44 (0) 870 444 7234
Fax: (408) 435-7163
Fax:+ 44 (0) 1763 274 106
Web: www.kerisys.com
Web:www.kerisystems.co.uk
E-mail: sales@kerisys.com
techsupport@kerisys.com
E-mail:sales@kerisystems.co.uk
tech-support@kerisystems.co.uk
- End of document. -
Page 2 of 2
P/N: 01997-003 Rev. A

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